1. Eu3+-Postdoped UIO-66-Type Metal–Organic Framework as a Luminescent Sensor for Hg2+ Detection in Aqueous Media
- Author
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Li Cuiliu, Zhu Chengyu, Qin Xiaohong, Zhang Wenjun, and Zhang Xiaoxiong
- Subjects
Lanthanide ,Detection limit ,Aqueous solution ,010405 organic chemistry ,Chemistry ,Inorganic chemistry ,Photothermal therapy ,010402 general chemistry ,01 natural sciences ,0104 chemical sciences ,Inorganic Chemistry ,Metal ,Isophthalic acid ,chemistry.chemical_compound ,visual_art ,visual_art.visual_art_medium ,Physical and Theoretical Chemistry ,Luminescence ,Biosensor - Abstract
Because of its extreme toxicity, the determination of Hg2+ in aqueous solution is an important subject for human health and environmental monitoring. In this study, a novel UIO-66-type metal-organic framework (MOF) doped with Eu3+ (isophthalic acid and 2,6-pyridinedicarboxylic acid and zirconium chloride served as the organic connectors and metal precursor, respectively) was prepared by a hydrothermal method and postsynthetic modification. The obtained lanthanide MOFs exhibited good photothermal and fluorescence stability in aqueous solution. As a luminescent probe, dispersions of the material can specifically recognize Hg2+ in many ions and have a detection limit of 8.26 nM. This novel lanthanide MOF shows great potential applications for biosensing, imaging, environmental analysis, and so on.
- Published
- 2019